2949 - 135836 - Silicon Bronze Coach Bolt- 5/16 - 18 UNC x 6" Full Thread

Coach or cup head bolts are traditionally a timber fastening. They have a smooth dome Coach or cup head bolts are traditionally a timber fastening. They have a smooth dome head – this makes them suitable to use in floors, steps or high traffic areas where a smooth finish is critical, or in outdoor furniture, raised garden beds, timber gates and fences, marine boat building and decks and docks.. The square under head is designed to ‘lock’ the bolt in place in a round hole to enable tightening with a nut and washer. Nuts and washers are sold separately. (see product range below) Head Diameter 17mm Head Height 4.3mm Square AF 8mm Thread Length Full Thread TPI 18 Metric Equivalent M8 Finish Mill Finish Material Solid Silicon Bronze Length 150mm